For a certain computer program a password must be exactly 5 characters long the first character must be a number 0-5, the second third and fourth character can either be one of the 26 letters or a number 0-9, the fifth character has to be exactly the same as the second character.

A) How many possible passwords are there?

6*36*36

To determine the number of possible passwords, we need to calculate the number of choices for each character position and then multiply them together.

For the first character position, there are 6 choices (numbers 0-5).

For the second, third, and fourth positions, there are 36 choices (26 letters + 10 numbers).

For the fifth position, it has to be the same as the second character, so there is only 1 choice.

To get the total number of possible passwords, we multiply the number of choices for each position:

Total number of possible passwords = 6 * 36 * 36 * 36 * 1 = 279,936

So, there are 279,936 possible passwords that meet the given criteria.